baber/WOPTO huggingface dataset:
Patent GB-1309572-A (GB)
Title: Signal apparatus
IPC: H04N5/932
Filed: 1970-06-10
Abstract: 1309572 Television MATSUSHITA ELECTRIC INDUSTRIAL CO Ltd 10 June 1970 [10 June 1969 (2) 19 Aug 1969] 28151/70 Heading H4F Television signals from a video tape recorder  (V.T.R.) 10, Fig. 1, have timing error #i(t) or  jitter, due to tape speed irregularities &c. A monitor 36 comprising C.R.T. 12 and a line  sweep generator circuit including an a.f.c. circuit 17, will display the pictures with jitter, due to the timing error #o(t) of the line sweep signals produced by the a.f.c. circuit 17 under the control of the line sync. pulses, being differ-  ent from that #i(t) of the video signals. If the transfer function of the low pass filter 16 and voltage controlled oscillator 15 is Fs, where  Transfer function =  Laplace transform of output signal  Laplace transform of input signal  then, when they are connected in a feed back  loop, as in the a.f.c. circuit, the transfer function  becomes  The jitter of the displayed picture is due to the timing error difference #i(t)-#o(t) between the video and line sweep signals. There is thus provided between the V.T.R. 10 and the monitor 36 a television signal processing means 37, Fig. 3, which, for the line sync. pulses only (use of sync. pulse separation 32), has a transfer function  equal to the inverse of that of the a.f.c. circuit, i.e.  The overall timing errors of the video and line sweep signals are thus equal at #i(t). In means 37 the uneffected video signal passing through means 31 is added back to the processed sync. pulses at adder 34. Various embodiments of the time-base processing means 33 having the transfer co-efficient F 1  are given in Figs. 4, 6, 7, 8. In the means of Fig. 4, a resonant circuit timing error signal detector 40 produces a signal E, Fig. 5, proportional to #i(t). A timing error eliminator 42, comprising a high Q resonant circuit, a Schmitt trigger and a monostable circuit, produces a pulse train D without any time error. This is passed for pulse position modulation, to a modulator 43. Signal E is weighted by equalizer 41 and is passed to modulate the pulse train D, and give the signal F (after shaping in circuit 44) having the desired timing error #r(t). The equalizer 41 has a transfer function As and the detector and eliminator 40 and 42 have sensitivities of k 1  and k 2  respectively, such that As, is thus varied until
Patent GB-1150990-A (GB)
Title: Polyamide and Preparation thereof.
IPC: C08G69/42
Filed: 1967-06-19
Abstract: 1,150,990. Polyamides. STAMICARBON N.V. 19 June, 1967 [22 June, 1966], No. 28238/67. Heading C3R. Polyamides are prepared from 7-amino-4- thia-oenanthic acid. Polymerization may be effected in the presence of a catalyst, e.g. sulphuric, acetic or phosphoric acid or tributyl phosphate, and of 0À1 to 5 mole per cent of a polyamine to improve the viscosity. Specified polyamines are tetra- and hexa-methylene diamines, 1,2-bis(aminomethyl)cyclobutane, 1,4- bis(aminomethyl)cyclohexane, diethylene triamine and 1,2,4,5-tetraminopentane. The polyamides melt at 190‹ to 200‹ C; in examples polyamides having intrinsic viscosities (in mcresol at 25‹ C.) ranging from 0À5 to 1À8 are prepared, the higher values being obtained either by including a polyamine or by advancing the polymerization of a solid polymer by heating it below the M.P. The products are suitable for film or fibres.
Patent GB-907461-A (GB)
Title: Gutter cleaner for barns
IPC: A01K1/01
Filed: 1960-08-15
Abstract: 907,461. Cleaning buildings. HUDSON MANUFACTURING CO., H. D. Aug. 15, 1960 [Sept. 3, 1959], No. 28240/60. Class 138 (1). [Also in Group XXX] A gutter 15, Fig. 1, in the floor of a barn or like building is cleaned by the passage therethrough of an endless chain 12 carrying projecting angle bars 14 which collect material in the gutter and carry it along a channel 16, Fig. 2, on an inclined elevator bed 11, to a shoot 17, Fig. 4, outside the barn. At the shoot 12, each bar 14 is cleaned by engagement with a wiper rod 47 carried by a spring-loaded arm 48. The cleaned angle bars 14 return down the side 18 of the elevator, where the free ends thereof engage a spring-loaded pivotally mounted bar 52 for tensioning the chain 12, before the bars 14 re-enter the gutter 15. The channel 16 is formed between a side wall 61 and a hollow beam 59 which is adjustably secured by bolts to the bed 11 so that the width of the shoot may be adjusted in accordance with the length of the bars 14. The chain 12 is driven by an electric motor and reduction gearing enclosed within a housing 94.
Patent GB-1467719-A (GB)
Title: Return-to-zero binary digital information storage system
IPC: G11B20/10
Filed: 1974-06-26
Abstract: 1467719 Decoding RZ data; data reader INTERNATIONAL BUSINESS MACHINES CORP 26 June 1974 [5 July 1973] 28246/74 Headings G4C and G4M Binary data in RZ form is read from a record to produce for each bit positive and negative pulses in an order corresponding to the value of the bit, the read signal being integrated to activate one of two amplitude detectors responding to signals of respective polarities above a threshold value to give a decoded output. The arrangement is said to be of use for inexpensive cassette tape records, hand held scanners &c., where substantial variations in translational velocity occur. The read signal is integrated on capacitor 54 which is connected to two operational amplifiers supplied with a reference voltage which respond to positive and negative voltages above the reference voltage to produce signals indicative of binary "1" and "0". In a modification, Fig. 3 (not shown), the amplifiers have slightly regenerative positive feedback so that the amplifier output turns on at the reference voltage level but turns off at a level of the integrated signal of a slightly smaller magnitude than the reference voltage. The outputs of the two amplifiers are combined to produce a clocking signal.
Patent GB-228113-A (GB)
IPC: H01H63/06
Filed: 1924-11-25
Abstract: 228,113. Siemens & Halske Akt.-Ges. Jan. 26, 1924, [Convention date]. Automatic exchange selectors.-A terminal bank comprises two parallel insulating sheets separated by an air space, and separately attached terminals. As shown, the sheets a, a' are semicylindrical and are held in grooves in supporting members d, d<1>. The terminals are stamped from sheet metal, the tongue i being bent out of the plane of the sheet. The terminals are inserted in slots in the sheets up to the shoulders k, and the tongue : i then springs out to engage the inner surface of the sheet a and to hold the terminal in position.
Patent GB-1046298-A (GB)
Title: Improvements in or relating to the drawing of synthetic filaments
Inventor: DAVIES STANLEY
IPC: D01F6/60
Filed: 1964-07-09
Abstract: 1,046,298. Spin draw process for polyamide filaments. BRITISH NYLON SPINNERS Ltd. July 6, 1965 [July 9, 1964], No. 28293/64. Heading B5B. A continuous process for spinning and drawing polyamide filaments comprises extruding a molten polyamide into filaments which are solidified, a finish applied thereto, the filaments lagged in the undrawn state for a period of between ten and fifty seconds, then drawn by stretching them to at least three times their original length then finally wound up. Preferably the polyamide is polyhexamethylene adipamide. The filaments may be lagged in an atmosphere having a relative humidity of at least 70%. Suitably, the filaments are drawn between feed and draw rolls, the point of drawing being located on a snubbing pin positioned between the. rolls and the filaments lagged between the point of application of the finish and the snubbing pin. Thus as shown, the filaments may pass from the feed roll, 10, to a freely rotatable roll, 12, spaced therefrom, make a plurality of passes about the said freely rotatable roll and return to the feed roll, the distance apart of the freely rotatable roll and the feed roll and the number of passes made by the filaments about the freely rotatable roll being adjusted to give the desired lag time. Alternatively the filaments may be lagged by passage around the filament accumulator means, suitably comprising a thread advancing reel or rollers having skewed axes, or alternatively large feed rolls may be employed. Alternatively many wraps around the feed rolls may be used, or the filaments may be lagged by passage through the stuffer box of Specification 1,034,418.
Patent GB-1497750-A (GB)
Title: Device for clamping a safety belt to prevent it being unwound from a reel
IPC: B60R22/185
Filed: 1975-07-04
Abstract: 1497750 Safety belt reel H D ADOMEIT 4 July 1975 [9 July 1974] 128294/75 Heading A3V An automatic seat belt 1 passes between clamping surfaces 8, one on a housing 24 and the other on a lever 4 pivoted at 7 to the housing, a resilient member 6 urging the lever in a direction to part the surfaces 8. The belt runs as shown from a reel provided with a ratchet wheel (11, Fig. 4 not shown); a pawl (10a) is stated to be operable by an acceleration conscious device (9) to engage the ratchet wheel and arrest the reel. In another embodiment (Fig. 5 not shown) the clamping device is positioned remotely from the reel.
Patent GB-504034-A (GB)
Title: Improvements in and connected with water heating apparatus
IPC: F24H1/20
Filed: 1937-10-18
Abstract: 504,034. Heating water. FOWLER, C. R., and GENERAL INVENTIONS, Ltd. Oct. 18, 1937, No. 28338. [Class 64 (iii)] A water heater intended particularly as an auxiliary heater of the water in a storage tank 19 consists of a water tube unit 1 of inverted T-form heated by a burner 25 and provided with fins or other means for increasing the heat ex change. The unit is connected to the upper and lower parts of the tank by unions 24, 18. A cold water inlet pipe 16 extends intc the unit to project the incoming water against e thermostat 10 controlling the gas supply to the burner Copper discs 4 and down wardly extending side walls 21 are welded to the hori zontal part of the unit anc a coiled copper wire or strip 8 is welded to the vertica part.
Patent GB-1261593-A (GB)
Title: Novel 3-arylimino-4-chloro-5-amino-1,2-dithioles, process for their production and compositions containing same
IPC: C07D339/04
Filed: 1969-06-06
Abstract: 1,261,593. Fungicides containing dithiols. AGRIPAT S.A. 6 June, 1969 [7 June, 1968], No. 28758/69. Heading A5E. [Also in Division C2] Anti-fungal compositions comprise a novel compound of formula: wherein R 1  is a C 1-5  alkyl group or a phenyl radical optionally substituted by chlorine or bromine atoms or C 1-5  alkyl or C 1-5  alkoxy groups, R 2  is hydrogen or a C 1-5  alkyl group, or R 1  and R 2  in combination form a C 2-6  polymethylene group, or a 3-aza-pentamethylene, 3- C 1-5  -alkyl-3-aza-pentamethylene or 3-oxapentamethylene group, and R 3  is a phenyl radical optionally substituted by chlorine or bromine atoms or C 1-5  alkyl or C 1-5  alkoxy groups, or an acid addition salt thereof, in combination with a carrier.
Patent GB-908717-A (GB)
Title: Paper roll holder
IPC: B65H35/00
Filed: 1959-08-24
Abstract: 908,717. Roll holders. DROLSHAMMER, E. J. Aug. 24, 1959, No. 28825/59. Class 18. A paper roll holder has rolls 10, 11 rotatably mounted at 12 so that the web 8 (8<SP>1</SP>) extends through a front opening 5 provided with a swingable tearing knife 6 after being guided along a curved passage comprising a top plate 14 (14<SP>1</SP>) and a bottom plate 16 (16<SP>1</SP>), the rear part 9 (9<SP>1</SP>) of the latter extending upwardly around the lower part of the roll 10 (11) to act as a brake thereon. The holder shown consists e.g. of a drawer.
Patent GB-519862-A (GB)
Title: Improvements relating to electric cables
IPC: H02G15/26
Filed: 1938-10-05
Abstract: 519,862. Cable joints. SIEMENS BROS., & CO., Ltd., and WOOD, H. G. Oct. 5, 1938, No. 28862. [Class 38 (i)] In a pressure cable comprising inner and outer spaced metal sheaths, at a joint the two sheaths are connected by a'metal strap or straps so that relative longitudinal movement between the sheaths is restricted. The cable 3 comprises an oval insulated stranded conductor 7 covered with a spaced or perforated helix of metal foil, an inner sheath 6 wrapped with brass tape, one or more helical spacing wires, an outer circular sheath 5 wound with brass tape, and outer jute wrappings and armouring. After the cables are jointed impregnated paper and metal foil 9 is wound over the joint, and a lead sleeve 11, wrapped with two brass tapes which break joint, is then passed over the joint and connected to sheath 6 by wipe 12 and wire 13. Copper strips 14 are then. sweated, clamped or bound to give electric connection between the sheaths 5, 6, and allow small relative movement. A copper tube 1, with brass ferrule 19, is then drawn over the joint, a split lead bush 20 applied, and the ferrule connected to the bush by wipe 21. A split end box 2 is then positioned, a pocket 4 therein being filled with sealing compound and the remainder of the box with low melting point solder. The filler plug may serve as an attachment for bonding together adjacent cables.
Patent GB-951647-A (GB)
Title: Radiation dosimeter
Inventor: HOECKER FRANK EDWARD
IPC: G01T1/04
Filed: 1960-08-20
Abstract: 951,647. Radiation dosimeters. F. E. HOECKER. Aug. 20, 1960, No. 28907/60. Heading H5R. A dosimeter comprises a container holding a quantity of material which is transformed from a fluid to a solid state under the action of radiation, and a movable indicator within the container whose movement gives an indication of the change of state of the said material. A preferred material is a liquid monomeric resin, which when polymerized by irradiation becomes a gel or solid, a suitable material being diethylene glycol dimethacrylate. The container 16 may be a transparent gelatine capsule, formed of two sections 12, 14 which telescope one into the other. The gelatine may be tinted to reduce the polymerizing effect due to sunlight. Included within the capsule are indicator means such as a lead or steel ball 22, and a bubble 20, which, when the material within the capsule is liquid, occupy the position shown in Fig. 1. When the capsule is inverted (Fig. 2) the ball and bubble re-orientate themselves as shown, in positions corresponding to Fig. 1. When, however, the liquid material has solidified as a result of irradiation, on inverting the capsule, the ball and bubble remain fixed in their original positions, thus affording a ready visual indication of the,radiation dose received by the capsule. Either the bubble or the ball may be used alone. Partial movement of the indicator may show partial solidification. Inhibiting agents, such as iodine, may be added to the monomeric material to inhibit its polymerization to a specific degree, thus reducing the sensitivity of the device if required. Several such capsules, containing liquids of differing radiation sensitivity, may be combined into a single unit.
Patent GB-1221564-A (GB)
Title: Entrainment arrestor
IPC: B01D45/08
Filed: 1968-06-18
Abstract: 1,221,564. Separator for liquid particles entrained in gas. COLONIAL SUGAR REFINING CO. Ltd. 18 June, 1968 [19 June, 19671, No. 28956/68. Heading B1T. Gas, entraining liquid particles, flows along a duct 2 and the particles are removed by at least one inclined baffffle 6 of zig-zag shape (Fig. 2); the (imaginary) planes bisecting the trough angles are parallel to the uninterrupted flow direction and to each other, so that the gas flows along the troughs. Fig. 1 shows two mutually inclined sets 3, 4 of parallel baffle plates in series; in other embodiments (not shown) the flow is horizontal, the baffles being vertical (Fig. 4), inclined to the horizontal (Fig. 3), or inclined at angles to the radii of a vertical inflow duct (29), (Fig. 5). Traps (27) and sumps (19) for the liquid may be provided. The stated application is to the recovery of sucrose from an evaporator in sugar manufacture.
Patent GB-211814-A (GB)
Title: Manufacture of acylacetyl-compounds
Filed: 1923-06-04
Abstract: Acylacetylamino compounds are prepared by heating, advantageously in the presence of a solvent or diluent, an acylacetic ester with a monamine of the general formula, NH2-R-X-R1, wherein R is an aryl residue, R1 the same or a different aryl group or a heterocyclic or acyclic residue of a compound containing a methylene group capable of coupling, and X an azo- or azoxy-group or the residue of a five-membered heterocyclic nucleus.  As diluents may be used benzene hydrocarbons, chlorobenzene, nitrobenzene, naphthalene, or a large excess of the acylacetic ester used for the reaction; the acylacetic esters specified are acetoacetic ester and its homologues and analogues such as benzoylacetic ester; monamines which may be used are the following:-aminoazoxy compounds, aminoazo compounds obtainable by coupling diazo compounds with middle components; aminoazo compounds obtainable by coupling nitro- or acylamino-diazo compounds with phenols or bodies containing active methylene groups such as methylphenylpyrazolones or derivatives of b -ketonealdehydes, for example acetoacetic acid derivatives or acetylacetone, and reducing or saponifying; amino substituted phenyl-pseudo-azimino-benzenes, phenyl-benziminazole, and phenyl-benzothiazoles.  Examples are given of the production of acetoacetyl derivatives of the following amines:-dehydrothiotoluidine, benzene-azo-1-naphthylamine, 4-aminoazobenzene, 41-aminobenzene-azo-1-phenyl-3-methyl-5-pyrazolone.  The properties are also tabulated of the acetoacetyl compounds of the following amines:-o- and m-aminoazotoluene, 41-chloro-4-aminoazobenzene, 31- and 41-nitro-4-aminoazobenzene, 4-amino-azoxybenzene (isomeride B, M.P. 114 DEG  C.), 41-amino-21-methylbenzene-azo-2-naphthalene, and 41-aminobenzene-azo-p-cresol.ALSO:The monoacylacetylamino compounds derived from certain complex monamines and an acylacetic ester such as acetoacetic ester or benzoylacetic ester have a substantive character and when fixed upon the fibre may be developed with diazo compounds to fast shades.  The parent monamines are of the general formula NH2-R-X-R1 where R is an aryl residue, R1 the same or different aryl residue or a heterocyclic or acyclic residue of a compound containing a methylene group capable of coupling, and X an azo or azoxy group or the residue of a five-membered heterocyclic nucleus.
Patent GB-298540-A (GB)
Title: Improvements in ink-ribbon mechanism for typewriting machines
IPC: B41J35/12
Filed: 1928-10-09
Abstract: 298,540. Royal Typewriter Co., Inc., (Assignees of Handley, G. P.). Oct. 10, 1927, [Convention date]. Ink-ribbon mechanism.-In a two-colour vibrator mechanism for typewriters having a shiftable carriage, an actuator for the vibrator is mounted to shift with the carriage and is formed with an arm having two faces for co-operating alternatively with an operating-member which is supported at one end from the framework, the mechanism being so arranged that whether the black or red stripe is employed, the throw of the vibrator is not affected by shifting the carriage, and the vibrator is started at the same point in the stroke of the keys. In the mechanism shown in the Figure the vibrator L is carried by an actuator or lever 2 which is pivoted at 3 to the carriage bed B and is normally held by a spring 5 in contact with an adjustable stop 7. An arm 8 on the lever is formed with faces a, b for engaging a pin 16 on an actuating-member or link 9 which is connected by a link 11 to an arm 13 on a shaft 14 mounted on the carriage bed. The link 9 is connected to a rocking arm R which is mounted on the framework A and is connected by a link P to an arm 0 rocked by the universal bar M. The Figure shows the carriage in normal position and the mechanism adjusted for employment of the black stripe, the pin 16 co-operating with the face a. To employ the red stripe, the shaft 14 is rocked to raise the link 9 and thereby cause the pin 16 to co-operate with the face b. When the carriage is shifted, the lever 2 and the inner end of the link 9 are raised and the pin 16 recedes slightly from the pivot 3, the increased inclination of the link so compensating for the change in position of the pin relatively to the face a or b that the throw of the vibrator is not affected. The pin 16 has slight lost-motion engagement with the face a or b. the lost motion being uniform for both positions of the carriage and both adjustments of the mechanism so that the vibrator is always started at the same point in the stroke of the keys. Overthrow of the vibrator is prevented by means of a stop 15 secured to the shaft 14 and having faces d, e for engaging the lever 2 when the black and red stripes respectively are employed. The vibrator is silenced for stencilling by turning the shaft 14 to raise the end c of the arm 8 out of the path of the pin 16. The pin may have a clearance flat 17.
Patent GB-920865-A (GB)
Title: Process for the extraction and purification of tetracycline
Filed: 1961-08-11
Abstract: Tetracycline is recovered from fermentation broths and purified by acidifying the broth to pH from 1.5 to 3.0, filtering, diluting 2- to 4-fold with water, contacting with a waterimmiscible oxygen-containing solvent and adjusting the pH to 7.5 to 8.5, separating the two layers, diluting the tetracycline-rich solvent layer with 50 to 65% of its volume of an aliphatic hydrocarbon having 6 to 8 carbon atoms, and re-extracting the tetracycline into water with dilute hydrochloric acid.  The waterimmiscible solvent may be butanol, methyl isobutyl ketone or butyl or amyl acetate, or mixtures thereof, and the aliphatic hydrocarbon may be n-hexane.  The tetracycline may be recovered from its dilute hydrochloric acid solution by bringing the pH slowly to 4.0 until most of the tetracycline is precipitated, then to 5.0, and filtering off the tetracycline.  The acidified filtered broth, or the diluted hydrochloric acid extract may be treated with potassium ferrocyanide to remove iron or other impurities. Specification 690,381 is referred to.
Patent GB-192479-A (GB)
Title: Improvements in or relating to tractor ploughs
IPC: A01B3/36
Filed: 1921-11-02
Abstract: 192,479. File, G. A. Nov. 2, 1921. Addition to 169,650. Multiple-furrow ploughs; adjusting and lifting parts of; gang apparatus.-A tractor plough of the kind described in the parent Specification is constructed so that each of the plough frames is attached to the single rod 10 of the pulling frame by means which allow transverse movement in addition to vertical movement. The plough frames are also adapted to be locked against transverse movement when in the raised position, and the distance between them may be adjusted. In the arrangement shown, the plough frames C are connected for transverse movement by bolts 48 engaging blocks 44 and plates 46, the forward ends of the plate members engaging horizontal slots in forked members 43 and are formed with flanges 45 to prevent disengagement. The members 43 are slidably and pivotally mounted on the rod 10. When the ploughs are raised, lateral or transverse movement is prevented by pivoted forked members 49 engaging teeth on the members 43. These parts are normally held in the disengaged position by springs 53 acting on the rods 51. The distance between the ploughs may be adjusted by a turn buckle 60 and screwed rods 61, 62 connected to the forks 43 by members 53a.